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Analysis of Air Transportation Systems Fundamentals of Aircraft ...

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a) If MALW > DTW use DTW in your computationsb) If MALW < DTW use MALW for in your computations.FAA method - Estimate the runway length required and use theshortest Landing Runway Length <strong>of</strong> all possible flap configurationsallowed.NOTE: This method is dangerous because if an engine failure occursafter take<strong>of</strong>f and the pilot would want to come back and land theaircraft it would have to dump large amounts <strong>of</strong> fuel. Using the lowestflap setting provides a safer design and thus can be used instead.II) Take<strong>of</strong>f <strong>Analysis</strong>a) Estimate the desired take<strong>of</strong>f weight (DTW) for payload/range dataprovided.DTW = OEW + FW + PYLwhere:Virginia Tech - <strong>Air</strong> <strong>Transportation</strong> <strong>Systems</strong> Laboratory 66

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